If you aren't familiar with Nuclear Throne, it's a 2D roguelike shoot-em-up. For April Fools, their joke was to announce they were changing the game to a 3D FPS. Except it wasn't just a joke, they actually made an entire playable version.

Youtuber JSmithOTI took a run through the April Fool's build, check it out in the video above! You can get an idea of how the normal game plays here, but note that's an old build, the game is still in development. You can get a copy for yourself here.